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The simple way to create and monitor a Ruby daemon
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README.markdown

With PID

The simple way to create and monitor a Ruby daemon.

Works by generating a bash file and executing it instead of doing any Ruby process tricks.

Requirements

sudo gem install with_pid

Ruby script

/data/my_app/current/bin/dj

#!/usr/bin/env ruby

require 'rubygems'
require 'with_pid'

with_pid(
  :action => ARGV[0], # start or stop
  :command => "/data/my_app/current/script/runner 'Delayed::Worker.new.start'",
  :name => "dj",
  :pid => "/var/run/dj/dj.pid",
  :tmp => "/data/my_app/current/tmp",
  :user => "deploy"
)

Be sure to run chmod +x /data/my_app/current/bin/dj.

It is up to you to make sure that the command you execute runs in a continuous loop.

Monit

check process delayed_job
  with pidfile /var/run/dj/dj.pid
  start program = "/data/my_app/current/bin/dj start"
  stop program = "/data/my_app/current/bin/dj stop"
  group delayed_job
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